An electric switch means for turning on and off a film wind-up motor in a single lens reflex camera is provided in a camera. The switch means is operated to start the motor upon supply of electric power to the camera or upon turning off of a solenoid provided in the camera for swinging up a mirror. The switch means is connected with a film perforation detecting device so that the switch is operated to stop the motor when the detecting device detects a perforation in the film. The film has one perforation per frame. Further, a timer is connected between the switch means and the motor to stop the motor when a time determined by the timer has lapsed for feeding the trailing portion of the film and stopping the film after the trailing portion is completely wound up.

A photographic camera is disclosed for use with a film cassette in which a filmstrip has a row of metering perforations in its imaging portion, adjacent a longitudinal film edge, for engagement with a metering pawl of the camera, and a row of take-up perforations in its leader portion, adjacent the same film edge, for engagement with a take-up spool of the camera, and a film spool is rotatable to unwind the film strip off the spool to thrust the leader portion from the cassette. The camera includes a film sensing member for normally maintaining the metering pawl removed from a film advance path between the cassette and the take-up spool to prevent the pawl from erroneously engaging the leader portion at one of its take-up perforations. The sensing member is actuated to release the metering pawl, to allow the pawl to be moved into the film advance path to engage the imaging portion at one of its metering perforations, only after the leader portion has been advanced sufficiently from the cassette to move its take-up perforations out of reach of the pawl.